加勁擋土牆動態設計與研發

Seismic Design of Mechanically Stabilized Earth Walls and Recent Development

李維峰(W. F. Lee) ； 黃亦敏(Y. M. Huang)

《地工技術》 85期 (2001/06) Pp. 13-24

https://doi.org/10.30140/SG.200106.0001

摘要

雖然目前有許多證據顯示加勁擋土牆在地震作用下比傳統擋土結構具備更佳之抗震能力，但在國內由於受限於相關設計及施工規範尚未制定完成，工程界對使用加勁擋土牆仍然缺乏信心。本文第一部份參考美國FHWA與NCMA的相關設計規範介紹加勁擋土牆動態設計分析的原理、考量及細節，主旨在說明其實加勁擋土牆的設計十分簡易，且不脫傳統土壤力學的範疇，第二部份則在介紹加勁擋土牆動態反應的研發現況及瓶頸，並提出國內未來從事相關研發工作的方向與重點。希望藉由本文使國內工程界對加勁擋土牆應用與設計能有更進一步的認識。

關鍵字

加勁擋土牆 ； 擬靜態分析 ； 擋土牆動態設計

並列摘要

Although many field evidences have shown that mechanically stabilized earth walls (MSEW) possess etter seismic resistance than conventional retaining structures, some geotechnical engineers in Taiwan are not comfortable in using and designing MSEW system. Main reason for such situation is that official design and construction specification or guidelines have not been well developed yet. The first part of this paper presents theory, considerations, and details of the seismic design of MSEW based on the manuals published by FHWA and NCMA. The authors try to illustrate that seismic design of MSEW is based on nothing but basic soil mechanics. In the second part of this paper, the authors also summarize the recent research progress of seismic response analysis of MSEW system. Discussions and suggestions of future research are also described. The purpose of this paper is to upgrade the design and to promote the application levels of MSEW in Taiwan.

並列關鍵字

mechanically stabilized earth wall ； pseudo static analysis ； seismic design of retaining wall